Ever since I upgraded to 5.0.1 and jailbroke it my device has been very sluggish; unlocking takes a few seconds, ipod controls will be unresponsive and memory is eaten up very quickly. Anyone else experienced this?

Download them from here or use the link in the bottom of the latest post on http://blog.iphone-dev.org/ if you don't trust my link above (although they're exactly the same link). It says "The OS X version of the CLI" but Windows is also supported. It's the same file for both.

Anyway, download and unpack wherever you deem appropriate and navigate to that folder in a command prompt.

1. Once you're there make sure your device is unlocked (you can see the icons on your home screen) and then run "cinject.exe -i payloads/jailbreak.mobileconfig"

2. A message about installing jailbreak will appear on the screen of your iphone or ipad. Just click install in the upper right corner. If it asks you for a password just leave the box empty and click on next or done in the upper right corner.

3. Then you run "cinject.exe -j payloads" from the command prompt and let it do it's work.

4. Eventually it'll tell you to run "cinject.exe -w" and enable the VPN option that's now appeared in the main settings menu. If it gives you some error about not being able to connect, don't worry about it, just wait a bit and eventually the device will restart.

If you typed out the "cinject.exe -w" command somewhere in the syslog that it dumps out you should spot the words ”pod2g is in da house!”

After the restart is finished you should be jailbroken and find Cydia somewhere on your homescreen.

I kept getting this error saying "FATAL(__LINE__): Assertion failed (1266): got == sizeof(size) 1266" after step 3.
I did a restore using the settings on my ipad (General > Reset > Reset All Settings) and then started over. This in itself wasn't enough though, I had to run the command from step 1 twice before it would accept the command from step 3 so maybe reset wasn't actually necessary. Anyway, keep at it and it'll probably work.

Should I jailbreak my iPhone 4? I'm not entirely sure if it's still a safe thing to do, as I had software issues before due to jailbreaking a while ago. The only benefits I really see aren't that major now with iOS5

Ever since I upgraded to 5.0.1 and jailbroke it my device has been very sluggish; unlocking takes a few seconds, ipod controls will be unresponsive and memory is eaten up very quickly. Anyone else experienced this?

Yeah, my 3GS is definitely slower. Uninstalling Winterboard seems to have made it more responsive but it still takes a lot longer to unlock than it used to, very irritating.

Sorry to ask so many questions now I looked around a little but didn't find anything useful on google.

The new 5.0.1 untethered for A5 does it work for the iphone 4 aswell or is there a seperate version available for it? I'm also currently on ios 4 so if I just update with itunes will I get 5.0.1 or is there a newer version out?

Sorry to ask so many questions now I looked around a little but didn't find anything useful on google.

The new 5.0.1 untethered for A5 does it work for the iphone 4 aswell or is there a seperate version available for it? I'm also currently on ios 4 so if I just update with itunes will I get 5.0.1 or is there a newer version out?

Sorry to ask so many questions now I looked around a little but didn't find anything useful on google.

The new 5.0.1 untethered for A5 does it work for the iphone 4 aswell or is there a seperate version available for it? I'm also currently on ios 4 so if I just update with itunes will I get 5.0.1 or is there a newer version out?

untethered for iphone 4 for iOS 5.01 is already out.
update / restore to 5.0.1 asap as apple is rolling out 5.1 soon which will patch the vulnerbility.
i recommend a restore to start a new / clean state if you backed up yuor stuff correctly.

must be some tweak you installed incorrectly or you installed to many tweaks such that it conflicted, or its your phone's battery experiencing problems. 9/10 of the people who complained to me jailbreaking sucks the battery life, had installed too many tweaks and it ate up ram and the themes ate battery too. only one person's battery was the real problem.

i have like 15 tweaks on my phone, excellent battery life, iphone 4, 5.01.
do the usual battery saving tips and do some of the deeper research yourself.

must be some tweak you installed incorrectly or you installed to many tweaks such that it conflicted, or its your phone's battery experiencing problems. 9/10 of the people who complained to me jailbreaking sucks the battery life, had installed too many tweaks and it ate up ram and the themes ate battery too. only one person's battery was the real problem.

i have like 15 tweaks on my phone, excellent battery life, iphone 4, 5.01.
do the usual battery saving tips and do some of the deeper research yourself.

Only two tweaks. LabelSlide and Five-Icon-Dock.
And I know it's not a problem with my phone. It had a great battery life before the JB (or really as good as the 4S battery gets)

untethered for iphone 4 for iOS 5.01 is already out.
update / restore to 5.0.1 asap as apple is rolling out 5.1 soon which will patch the vulnerbility.
i recommend a restore to start a new / clean state if you backed up yuor stuff correctly.

Edited:

Ssh-ing for? view files on computer? transfer files to and from?
if so, i recommend using ifunbox.

Transferring, trying to get some themes and icons on. I've used Putty, Filezilla, and winscp. Still doesn't work.

For some reason most sources are loading slow on my iPad.. I did managed to install SNES HD and it really is the best thing ever if you got another iPod/iPhone
Because on your iPhone/iPod you install ControlPad and that will turn your device into the controller
Also need some good Cydia apps for the iPad